Improvement in stump-extractors



UNITED STATES PATENT OFFICE.

FRANKLIN L. I-IOWE, OF VOODSTOOK, VERMONT, ASSIGNOR TO HIMSELF AND J. H. MURDOOK, OF SAME PLACE.

IMPROVEMENT IN STUMP-EXTRACTORS.

Specification forming part of Letters Patent No. 33,320, dated September 17, 1861.

To a/ZZ whom it may concern.-

Be it known that I, FRANKLIN L. HowE, of Woodstock, in the county ot Windsor and State of Vermont, have invented a new and Improved Stump-Extractor; and I do hereby declare that the following is a ulLIclear, and exact description of the same, reference bef ing had to the annexed drawings, making a part of this specification, in which- Figure 1 is a side view of my invention; Fig. 2, a plan or top view of the same.

Similar letters of reference indicate corresponding parts in the two figures.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A represents a framing of any suitable construction, in which a windlass B is placed, said windlass having a ratchet C at one end.

D is a lever, which is securedV by a fulcrum-pin ain the upper part of the framing A, directly over the ratchet C, the pin ct being at the center of lever D. The lever D has two pawls E E attached to it. These pawls depend from the lever D at oppositesides of its fulcrum-pin ct, and both engage with the ratchet C at one side of the latter, as shown clearly in Fig. 1. The pawls E E are connected by chains b b to the ends of a forkedv lever F, which is attached to one side of the framing A.

To the windlass B there is attached a chain G, which passes over a strut H and is attached to the stump I to be extracted, and .I is a chain which is attached to the framing A and is connected to a stump or any suitable holdfast K.

The device is operated by oscillating the lever D or working it up and down, an operator being at each end of it. The pawls E E act alternately upon the ratchet C, each acting as the side of the lever to which it is attached descends, and a pawl is always engaged with the ratchet, so that no special holding-pawl is required, the pawls E E acting alternately as holders and drivers. The chain G is wound on the windlass by the rotation of the latter effected through the medium of the lever D and pawls E E', and the stump I is extracted under the pull of the chain, the strut I-I performing its usual function of guide. ratchet C may berelieved at any time from the pawl engaged with it by operating the lever F. VlIen the outer-'end of said lever F is depressed the paw] E is disengaged from the ratchet, and the pawl E disengaged from it by moving the lever F in an opposite direction. This arrangement of the lever F, with its forked end and chains, is an important feature of the invention, as it admits of either pawl being disengaged from the ratchet by a simple adjustment, and the arrangement of the pawls E E of the lever Dl is also iInportant, asboth pawls act upon the ratchet during their downward movement.

The ordinary plan of a pressure and a lifting pawl placed at opposite sides of a ratchet, it is believed, is inferior to the within-de scribed invention, as by the latter arrange- Inent a greater power is obtained with levers of a given length, my invention admitting of the pawls being placed very near the fulcrum of the lever.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

' The arrangement of the forked lever F and chains b b, with the pawls EE', lever D, and

^ the ratchet O, in the manner herein shown and described.

FRANKLIN L. HOWE. Witnesses:

EUGENE PUTNAM, J. H. MURDOCK.

The 

